97 U.S.: 1-800-LOCTITE (562-8483) Canada: 1-800-263-5043 www.henkelna.com/loctite www.equipment.loctite.com Potting, Molding & Encapsulating Potting, Molding & Encapsulating WHAT IS THE BEST PRODUCT FOR MY APPLICATION? The following chart may assist you when selecting a potting or encapsulating compound. This chart is intended to serve as a general guideline to help you determine which categories are best suited for your application. The data presented represents typical properties for each product category; however, individual product properties may differ. It is suggested that, based on the information provided, you consider at least the two best product categories that meet your application criteria. Individual product information can then be found on the pages that follow to help you narrow your search. Potting and encapsulating compounds are used to provide mechanical reinforcement to housed assemblies, to fill large voids, and to protect components from the effects of exposure to chemicals, moisture, mechanical shock and vibration. Sealing components with potting and encapsulating compounds prevents corrosion and ensures long-term integrity of the device. VARIABLES TO CONSIDER WHEN SELECTING A POTTING OR ENCAPSULATING MATERIAL INCLUDE: • Viscosity of uncured compound • Dispensing requirements • Device operating temperature • Desired chemical resistance • Desired thermal conductivity • Desired flame retardance • Hardness of cured product • Overall cost There are a variety of potting and encapsulating compounds to choose from – epoxy, hot melt, silicone and urethane. The thermal properties of epoxy and silicone systems make them ideally suited for applications exposed to temperatures above 257°F (125°C). If a soft, flexible material is needed, particularly at low temperatures, then a urethane, silicone or hot melt material may be used. STRAIGHT FROM The Source Henkel Adhesive and Sealant Product Specialists are available to assist you with new product designs, or to help you re-engineer an existing application for improved performance and cost savings. They can also set up testing of your parts at the Henkel Customer Engineering Center. For application assistance, call 1-800-LOCTITE (562-8483); within Canada, call 1-800-263-5043; or, contact us through the web at www.henkelna.com/loctite. 97 POTTING, MOLDING & ENCAPSULATING 99 Epoxies & Polyurethanes 103 Silicones 106 Silicone Equipment 107 Hot Melts 109 Hot Melt Equipment 111 Low Pressure Molding
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WHAT IS THE BEST PRODUCT FOR MY APPLICATION? The following chart may assist you when selecting a potting or encapsulating compound. This chart is intended to serve as a general guideline to help you determine which categories are best suited for your application. The data presented represents typical properties for each product category; however, individual product properties may differ. It is suggested that, based on the information provided, you consider at least the two best product categories that meet your application criteria. Individual product information can then be found on the pages that follow to help you narrow your search.
Potting and encapsulating compounds are used to provide mechanical reinforcement to housed assemblies, to fill large voids, and to protect components from the effects of exposure to chemicals, moisture, mechanical shock and vibration. Sealing components with potting and encapsulating compounds prevents corrosion and ensures long-term integrity of the device.
VARIABLES TO CONSIDER WHEN SELECTING A POTTING OR ENCAPSULATING MATERIAL INCLUDE: • Viscosity of uncured compound • Dispensing requirements • Device operating temperature • Desired chemical resistance • Desired thermal conductivity • Desired flame retardance • Hardness of cured product • Overall cost
There are a variety of potting and encapsulating compounds to choose from – epoxy, hot melt, silicone and urethane. The thermal properties of epoxy and silicone systems make them ideally suited for applications exposed to temperatures above 257°F (125°C). If a soft, flexible material is needed, particularly at low temperatures, then a urethane, silicone or hot melt material may be used.
STRAIGHT FROM The Source
Henkel Adhesive and Sealant Product Specialists are available to assist you with new product designs, or to help you re-engineer an existing application for improved performance and cost savings. They can also set up testing of your parts at the Henkel Customer Engineering Center. For application assistance, call 1-800-LOCTITE (562-8483); within Canada, call 1-800-263-5043; or, contact us through the web at www.henkelna.com/loctite.
The Adhesive Sourcebook 2015: Your Source for LOCTITE® products for design, assembly, manufacturing and maintenance
Potting, Molding & Encapsulating
Potting, Molding &
Encapsulating
1 Examples of Polar Solvents: Water, Ethylene Glycol, Isopropyl Alcohol, Acetone.2 Examples of Non-Polar Solvents: Motor Oil, Gasoline, Toluene, n-Heptane, ATF.
PLEASE NOTE: This chart should not be used to specify products without specific testing. It is recommended that you conduct on-part testing to ensure product performance before specifying any adhesives.
PERFORMANCE CONSIDERATIONS
POTTING & ENCAPSULATING COMPOUNDS
HOT MELTS POLYURETHANES EPOXIES SILICONES
BENEFITS Fast, large gap filling Excellent toughness/flexibility Wide range of formulations Excellent temperature resistance
A potting compound resin that is formulated to offer improved flame retardance when mixed with HYSOL® Epoxy Hardener (3160, 3162, 3163, 3164, 3165).
P/N Package Size40512 1 gallon pail
LOCTITE® 3141™ Hysol® Epoxy Resin
Resin formulated to offer improved long-term performance at higher temperatures when mixed with a HYSOL® Epoxy Hardener (3160, 3162, 3163, 3164, 3165).
P/N Package Size39947 1 gallon pail
LOCTITE® E-40EXP™ Hysol® Epoxy Adhesive
A two-component, room-temperature curing epoxy potting compound designed to pass UL testing and maintain more than 85% of its compression strength following exposure to 13 harsh chemicals.
P/N Package Size1511653 200 ml dual cartridge 1511896 5 gallon pail - part A 1511897 5 gallon pail - part B
Epoxies & Polyurethanes
WHAT IS THE MOST IMPORTANT ASPECT WHEN CHOOSING YOUR PRODUCT?
Flame RetardantHigh
Temperature Resistance
Explosion Proof Sealing
Fast Cure Long Open Time Metal Bonding/High Chemical
Resistance
UL 94V-0 Rating Metal Adhesion Plastic Adhesion
3364™ 3184™ 3145™ 3141™ E-40EXP™
Key Feature Fast Cure, 1:2 Mix Ratio Flame Retardant Flame Retardant High
LOCTITE® DURAPUMP™ METER MIX SYSTEMSLOCTITE® DuraPump™ Meter Mix Systems offer superior operating performance and durability for a wide range of two-component adhesive chemistries (including MMA**) up to 10:1 ratios and is available in two different models – programmable and pneumatic. For more product and technical information and other LOCTITE® Meter Mix systems, please go to page 175.
AD
DIT
ION
AL
RES
OU
RCE
S
* Made-to-order item. ** Pneumatic only.
100
The Adhesive Sourcebook 2015: Your Source for LOCTITE® products for design, assembly, manufacturing and maintenance
Epoxies & Polyurethanes
LOCTITE® Hysol® Polyurethane System Properties Chart
50 ml dual cartridge200 ml dual cartridge400 ml dual cartridge
Black 60 min.
D 85 CFIA Listed
Electrically noncorrosive, low viscosity
E-30CL™ 29329 29330 29331
50 ml dual cartridge200 ml dual cartridge400 ml dual cartridge
Clear 30 min.
D 85 N/A Medium fixture, chemical resistant
E-40EXP™ 1511653 1511896 1511897
200 ml dual cartridge5 gallon pail - part A5 gallon pail - part B
Black 35 min.
D 80 UL 674 Chemical resistant, use in hazardous locations
LOCTITE® Hysol® Polyurethane Kit Properties Chart
LOCTITE® PRODUCT
ITEM NUMBER
PACKAGE TYPE & SIZE COLOR WORK
LIFESHORE
HARDNESS AGENCY
APPROVALSKEY
FEATURES
LOCT
ITE®
HYS
OL®
POLY
URET
HANE
KIT 3364™ 1166733 50 ml dual
cartridgeBlack 45 sec. D 80 UL 94V-0 Fast
cure, 1:2 mix ratio, black
EPOXIES & POLYURETHANESLOCTITE® Hysol® potting and encapsulating compounds are two-part epoxy and polyurethane systems formulated to offer a wide range of performance characteristics matched to specific application requirements. Any epoxy resin can be combined with any epoxy hardener to create a mixed system. The same applies to the polyurethane resins and hardeners.
A UV or visible light curing, noncorrosive silicone with very high bond strength. Ideal for high speed adhesion and sealing applications. High adhesion for difficult-to-bond substrates.
Two-part, flame retardant (UL 94V-O) silicone. Products vary in cure speed and open times from fast (F) to standard (S) to match particular end-use applications. Grey in color.
P/N Package Size1385991 490 ml dual cartridge1387908 4.5 gallon pail, part A1387706 4.5 gallon pail, part B1386373 575 lb. drum, part A1432213 440 lb. drum, part B
LOCTITE® 5640™ Silicone Potting Compound
Self-Leveling, Noncorrosive, Flame Retardant
Two-part, self-leveling with a V-0 rating and an improved adhesion to plastics. Grey in color. UL Listed.
P/N Package Size1738359 490 ml dual cartridge1738366 55 gallon drum, part A1738365 5 gallon pail, part B
LOCTITE® 5611S™ Silicone Potting Compound
Self-Leveling, Noncorrosive, Flame Retardant
Two-part, flame retardant (UL 94V-O) silicone. Products vary in cure speed and open times from fast (F) to standard (S) to match particular end-use applications. Grey in color.
P/N Package Size1386378 490 ml dual cartridge1387908 4.5 gallon pail, part A1388496 4.5 gallon pail, part B1386373 575 lb. drum, part A1387212 440 lb. drum, part B
* Made-to-order item.
Your Application
Solution
Product Description
• Single-component, tough, protective
• Seal components against moisture, solvents and environmental conditions
• Cure in as little as 30 seconds to depths of 0.150 in. when exposed to UV light or visible light
WHAT IS THE MOST IMPORTANT ASPECT WHEN CHOOSING YOUR PRODUCT?
UL 94V-0 Flame Retardant High Adhesion Self-Leveling Ultra-Clear
Fast Cure Standard Cure Difficult-to-Bond Substrates Deep Potting Flowable Noncorrosive Soft Gel Tack-Free Noncorrosive
A low viscosity, self-leveling, UV or visible light curing silicone for high speed deep potting, coating and sealing applications. Provides high adhesion for difficult-to-bond substrates.
P/N Package Size40086 300 ml cartridge40087 40 lb. pail
LOCTITE® 5055™ Silicone Adhesive Sealant
Self-Leveling/Flowable
A UV or visible light curing, noncorrosive silicone for high speed coating, potting adhesion, or sealing applications. High adhesion for difficult-to-bond substrates.
A UV or visible light and moisture curing, noncorrosive silicone ideal for high speed adhesion and sealing applications. High adhesion for difficult-to-bond substrates.
P/N Package Size1010341 30 ml syringe1010320 300 ml cartridge1010343* 40 lb. pail
LOCTITE® 5620™ Silicone Potting Compound
Ultra-Clear/Fast Cure
Two-part, ultra-clear, fast cure, noncorrosive silicone. Transparent in color. Ideal for sealant, or potting applications that require a transparent silicone. Fast room temperature cure.
P/N Package Size1257478 400 ml dual cartridge 1257595 40 lb. pail, part A 1257597 40 lb. pail, part B 1257594 400 lb. drum, part A 1257596 400 lb. drum, part B
LOCTITE® 5623™ Silicone Potting Compound
Ultra-Clear/Soft Gel
Two-part, ultra-clear, tack-free, noncorrosive silicone gel. Transparent in color. Tough gel. Room temperature cure or accelerated heat cure.
P/N Package Size1259300 400 ml dual cartridge 1257611 40 lb. pail, part A 1257607 40 lb. pail, part B 1257612 400 lb. drum, part A 1257609 400 lb. drum, part B
LOCTITE® 5625™ Silicone Potting Compound
Ultra-Clear/Tack-Free
Two-part, ultra-clear, soft, noncorrosive silicone gel. Transparent in color. Very soft, re-enterable gel. Room temperature cure or accelerated heat cure.
P/N Package Size1257475 400 ml dual cartridge 1257616 40 lb. pail, part A 1257613 40 lb. pail, part B 1257617 400 lb. drum, part A 1257615 400 lb. drum, part B
WHAT IS THE MOST IMPORTANT ASPECT WHEN CHOOSING YOUR PRODUCT?
UL 94V-0 Flame Retardant High Adhesion Self-Leveling Ultra-Clear
Fast Cure Standard Cure Difficult-to-Bond Substrates Deep Potting Flowable Noncorrosive Soft Gel Tack-Free Noncorrosive
490 ml dual cartridge 55 gallon drum, part A 5 gallon pail, part B
Two-Part10:1 A:Bby volume38 minutes tack-free
Part A - 10,000Part B - 1,000
5 minutes A 30 UL 94-0
ITEMS IN RED = Source’s PICK or NEW * Made-to-order item. ** Pot life.
Silicones
106
The Adhesive Sourcebook 2015: Your Source for LOCTITE® products for design, assembly, manufacturing and maintenance
www.equipment.loctite.com Silicone Equipm
ent
YOUR EQUIPMENT SourceFor more details, see the LOCTITE® Equipment Sourcebook, LT-3669, or visit us on the web for additional information, diagrams, products and our full line of equipment at www.equipment.loctite.com.
Silicone Equipment
LOCTITE® PRODUCT ITEM NUMBER
PRESSURE REGULATION USED TO DISPENSE PACKAGE TYPE & SIZES VISCOSITY
RANGELOW LEVEL SENSING
CONSUMABLES – DISPENSE ACCESSORIES
CART
RIDG
E DI
SPEN
SING
PNEUMATIC CARTRIDGE DISPENSING
300 ML PNEUMATIC CARTRIDGE DISPENSING RETAINER
98319A 0 to 60 psi Gel Cyanoacrylates, Anaerobic Gasketing, Light Cure/Acrylics, Silicones
300 ml cartridges Low to Medium
Pneumatic Cartridge Accessories – Page 177
HD10 300 ML PNEUMATIC CARTRIDGE DISPENSER
1714379 0 to 60 psi Gel Cyanoacrylates, Anaerobic Gasketing, Light Cure Acrylics, Silicones
300 ml cartridges 250 ml tubes
Medium to High
No
300 ML CARTRIDGE PUSHER 98022 0 to 50 psi Gel Cyanoacrylates, Anaerobic Gasketing, Light Cure/Acrylics, Low Viscosity Silicones
300 ml cartridges 250 ml tubes
Medium Yes
HIGH PRESSURE 300 ML BENCHTOP CARTRIDGE DISPENSER
1046901 0 to 725 psi Silicone, Polyurethane, MS Polymer Adhesives
290 ml cartridges300 ml cartridges310 ml cartridges
10,000 to 1,000,000
Yes Use with High Pressure Dispense Valve (sold separately) – see below
LOCTITE® PRODUCT ITEM NUMBER TYPE VISCOSITY RANGE DISPENSE
PATTERNS USED TO DISPENSE STROKE ADJUSTMENT SUCK-BACK CONSUMABLES – DISPENSE
ACCESSORIES
VALV
ES &
PUM
PS
HIGH VISCOSITY FLUID & PASTE VALVES
VA 25 DISPENSE VALVE – 50 BAR
1838885 High Viscosity Fluid and Paste Valves
10,000 to 1,000,000 cP
Drop, Bead
Silicones, MS Polymers, Urethanes
Yes Yes Dispense Tips and Accessories – Pages 176-177
HIGH PRESSURE DISPENSE VALVE – 150 BAR
1153502 500,000 to 2,000,000 cP
Yes No
ITEMS IN RED = Source’s PICK or NEW
Your Source for Motion Control Robot Dispense Systems. See page 171.
STRAIGHT FROM The Source
EQUIPMENT – Henkel is a full-service supplier of LOCTITE® branded equipment and offers a wide variety of equipment services to its customers. For more LOCTITE® branded equipment, go to page 165.
Can't find what you're looking for? Visit www.equipment.loctite.com or call 1-800-LOCTITE (562-8483).
Low viscosity polyamide used extensively for potting and encapsulating.
P/N Package Size83342 40 lb. carton pellets
LOCTITE® 1942™ Hysol® Hot Melt Adhesive
General-Purpose
Medium setting, general-purpose hot melt adhesive. Excellent adhesion to wood and many plastics. Not recommended for high temperature potting applications.
YOUR EQUIPMENT SourceFor more details, see the LOCTITE® Equipment Sourcebook, LT-3669, or visit us on the web for additional information, diagrams, products and our full line of equipment at www.equipment.loctite.com.
Hot Melt Equipment
STRAIGHT FROM The Source
For custom hot melt dispense nozzles, contact the Special Equipment Group of Henkel at 1-800-LOCTITE (562-8483).
LOCTITE® PRODUCT ITEM NUMBER STICK DIAMETER DISPENSE
The Adhesive Sourcebook 2015: Your Source for LOCTITE® products for design, assembly, manufacturing and maintenance
Low Pressure M
olding
TECHNOMELT® PA 7873™
Moldable amber polyamide with good adhesion for higher temperature applications up to 140°C (284°F).
P/N Package Size1763724 44 lb. bag
TECHNOMELT® PA 7878™ BLACK
Moldable black polyamide with good adhesion for higher temperature applications up to 140°C (284°F).
P/N Package Size1762904 44 lb. bag
TECHNOMELT® PA 7808™ BLACK
Moldable black polyamide with excellent adhesion to tough substrates and superior flexiblity. This product is ideal for strain relief on cables and wires and for the encapsulation of heat-producing components in electrical devices. Has a UL RTI of 95°C (203°F).
P/N Package Size1762910 44 lb. bag
TECHNOMELT® PA 7844™ BLACK
Moldable black polyamide with improved UV stability that is suitable for outdoor applications. Enhanced adhesion to low surface energy plastics compared to other polyamides.
P/N Package Size1925259 40 lb. bag
TECHNOMELT® PA 7857™ BLACK
Moldable black polyamide that can be used where excellent adhesion and cold temperature flexibility are important.
P/N Package Size1762909 44 lb. bag
TECHNOMELT® AS 7875™
Moldable polyolefin hot melt for applications demanding moisture and solvent resistance. It exhibits excellent adhesion to low surface energy plastics.
P/N Package Size1762907 55 lb. bag
WHAT TYPE OF MOLDING MATERIAL DO YOU NEED?
High Rigidity High Flexibility
Highest Hardness High Temperature Resistance
Good Adhesion Amber Black Exposure to Sunlight Amber Black
High Relative Thermal Index
(RTI)
Exposure to Sunlight
Cold Temperature Performance
Superior Adhesion to Low Surface
Energy Materials
PA 7838™ BLACK PA 7841™ PA 7846™
BLACKPA 7848™ BLACK PA 7873™ PA 7878™
BLACKPA 7808™ BLACK
PA 7844™ BLACK
PA 7857™ BLACK AS 7875™
Color Black Amber Black Black Amber Black Black Black Black Opaque White